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The Generac 3100 psi (gas - cold water) pressure washer is available for purchase today.

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Generac 3100 PSI (Gas - Cold Water) Pressure Washer

(Based on expert analysis, manufacturer ratings and customer reviews)

4.6 out of 54.6 out of 54.6 out of 54.6 out of 54.6 out of 5
188 Reviews
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$399.00
$359.90
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  • Features
  • Specs
  • 11
    Q&A 
  • 188
    Reviews
  • Articles
  • Shipping
  • Accessories

Grade
Style
Water Pressure
3100
PSI
Water Flow
2.7
GPM
Cleaning Speed
8370
Cleaning Units
Engine
Generac
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Powerful Generac 5.5 HP Horizontal Shaft OHV Engine
Easily handles most tasks around the house

High Performance AR Axial Cam Pump
Brass head is more durable than all-aluminum pumps
Easily accessible- no more kneeling to connect hoses

Handy, Manuverable Cart With Spray Gun Holster
Engine & pump are perfectly balanced & easy to move
Large Never-Flat wheels take on varied terrain

Ergonomic Generac Spray Gun With 20" Lance
Soft grip & easy-pull inverted fulcrum trigger reduces fatigue

5 Quick-Click™ Nozzle Tips & 30' M22 Hose
0°, 15°, 25°, 40°, and soap applicator

Two 3/4 Gallon On-Board Detergent Tanks
Keep 2 detergents handy- wash & wax, cleaner & grease cutter, etc

Stabilizing Foot Rest
Holds the unit steady for smoother pull-starting

2 Year Limited Warranty
Protects your investment

Not For Sale In California
Doesn't meet strict CARB emissions standards



Model
  Model Number:6598
 UPC:696471065985
 Manufacturer:Generac
Engine
 Engine Brand:Generac
 Starter:Recoil
 HP/CC5.5 HP/212 cc
 Fuel Tank Size3.2 quarts
Pump
 Pump Brand:AR
 Pump Type:Axial Cam
 Adjustable Pressure:No
 Chemical Injection:Dual Detergent Tank
 Detergent Tank Capacity:.75 gal x2
Housing
 Frame Type:2-Wheel Cart
 Wheels:NeverFlat
Hose
 Hose Storage:Hook
 Hose Length:30 ft
 Hose Material:PVC/Plastic
 Hose Diameter:1/4 Inch
 Hose Connections:M22
Spray Gun
 Spray Gun Connection:M22
 Spray Gun Grade:Residential
 Spray Gun Wand:Single Wand
 Spray Tips:Quick Connect Tips (5)
 Turbo Nozzle:Sold Separately
Overview
 Weight:67.5 Lbs.
 Dimensions:23.3L x 16W x 40.3H
 Mfr Consumer Warranty:2 Years

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  11 Questions
Q: Is there a comparable model that you would recommend over this model?
by Keith Shannon from Maryland on May 26, 2015

A: The unit that is equal in quality, is the Karcher unit model G3050OHC. Karcher makes the pump on the unit and it is one of the best consumer grade units in the industry today. I have attached a link to view that item.

Karcher Unit
by Mike, Product Expert
Q: Is there an extension hose available for this model? What hose would you suggest if I go with a
longer hose instead of the extension hose?

by Steve Lohman from Missouri on April 24, 2015

A: If you need to go with a longer high pressure hose, I would recommend jumping up to a 5/16" diameter hose and using it as a replacement. To extend the length, you would want a stronger more durable hose like the 5/16" hoses. I have attached a link for you to view a 50FT high pressure hose I would recommend for this unit.

50FT High Pressure Hose
by Mike, Product Expert
Q: What is a flywheel brake and what is the purpose of it? does the generac have this brake and the Honda ? I had a Honda washer with a brake on it and I had a lot of different problems with it so im very cautions of buying another
by John T from Florida on September 13, 2014

A: No, this unit does not have a flywheel brake on it. The purpose of that is to control the engine speed. This unit is a great choice for homeowner use. I highly recommend this unit. The pump on the unit is made from AR, and is one of the best axial cam pumps in the industry today.
by Mike, Product Expert
Q: I have a 3100psi Generac model 60242 I purchased from PED. Works great. I have noticed lately that when I tilt the unit back in order to reposition it, it will suddenly quit. Is this the "Oil Alert System" sensing a drop in oil level and shutting down the engine? The unit restarts after a couple of pulls.
by Dave from North Carolina on June 05, 2014

A: It could be the Oil Alert sensor, or an adjustment needed in the carburetor... The good news is this unit comes with a 2 year Factory Warranty from the folks at Generac.

You can use their Service Center Locator to find your local Authorized Repair facilities, or give them a call at (888) 436-3722 x5381.

Please be sure to have the serial number of your pressure washer handy if you call Generac; they usually ask for it. You will need a copy of your invoice for any warranty work- just click on My Account in the upper right corner of our website and follow the prompts to print one out.

If there are several repair locations in your area you may want to call around to see which one has the shortest turn-around time so you get your pressure washer back as quickly as possible.
by Mike, Product Expert
Q: Hi...I see the site sells extended warranties. Who covers these, and what's covered. Also, is it worth it to go beyond the two year Generac offers.
by Brian Warehime from New York on May 29, 2014

A: The Extended warranty is covered by WarrenTech. They will start the day after the manufacture warranty and cover all non wearable items. Things that would not be covered would be items like the hose, gun, wand. They would have you take it to a local service center. I feel the Generac Warranty is great. However, if you would like extra time after that it is available for purchase.
by Mike, Product Expert
Q: I am looking for recommendation on accessories needed for the Generac 6598 to easily clean siding and gutters on a large 2 story house.
Thanks.

by Jared from Florida on May 08, 2014

A: I definitely recommend a telescoping wand and gutter cleaner attachment for your application. If you would like to spray detergent through the telescoping wand you will need to go with an aluminum one. I have included link to the telescoping wand, gutter cleaner, adapter needed to attach to your high pressure hose, and the detergent I recommend.

Telescoping Wand

Gutter Cleaner attachment

Adapter

Detergent
by Mike, Product Expert
Q: I'm buying a generac gas model# 6598 from you guys and am looking at MTM hydrojet turbonozzle to go with it.What size orifice should I get? We have a two story home (30' to gable ends) will MTM Hydro long-range detergent foamer work?
by Bruce E Lawrence from Maine on April 17, 2014

A: You should get a 3.0 Orifice Turbo Nozzle. Turbo Nozzles are meant to increase cleaning speed and efficiency, not for long distances. I have attached a link for you.

3.0 Orifice Turbo Nozzle

For your two story home and gables I would go with model 100145. This product allows you to reach up to 3 stories high. I have included a link to this as well.

Model 100145

Both of these product will quick connect on to the end of your lance where the colored spray tips usually go.
by Mike, Product Expert
Q: Will the Generac 6598 connect to a foam cannon like the MTM Hydro without needing any additional hardware?
by Doug from Rhode Island on April 15, 2014

A: Yes, you can purchase the MTM foamer model 14.0263. This has a fitting on it so that it quick connects into where your colored spray tips usually go, so no additional hardware is needed. I love this foamer!

MTM Foamer
by Mike, Product Expert
Q: What is the pump made out of?
by Zach from Minnesota on April 14, 2014

A: This unit has an AR axial cam pump with a brass head on it. It is a step above the rest in it's category. The brass head dissipates heat more effectively, therefore increasing the life of the pump.
by Mike, Product Expert
Q: Is there a telescoping spray wand available for the
Generac Model 6598?

by Carmen Fontana from Delaware on April 13, 2014

A: Yes, if you would like to be able to dispense detergent I recommend the 24' Aluminum Telescoping Wand. I have also included the adapter you will need to connect this product to your high pressure hose.


24' Aluminum Telescoping Wand

Adapter
by Mike, Product Expert
Q: If you go to Lowes, they still carry the model 6024. You show that model as being disconntinued. The 6598 seems to match up with the 6024, spec for spec. Is there any difference? Why wouldn't Lowes carry the 6598?
by Mark from Connecticut on March 19, 2014

A: The 6024 is the old model number. The new model number is the 6598. It has all the same components as the 6024, just different colors to make it more appealing.
by Mike, Product Expert
Generac 6598 Reviews & Ratings
Write Review
Overall Rating
Features
4/5
Quality
4/5
Performance
5/5
Value
5/5
Overall
4.6 out of 54.6 out of 54.6 out of 54.6 out of 54.6 out of 5
Pros
Easy To Use (54)
I'd Buy It Again (34)
Price (32)
Exceeded Expectations (21)
Easy To Store (21)
Cons
Low Quality (8)
Bad Instructions (5)
Durability (4)
Unreliable (4)
None (3)
91% of respondents would recommend this product to a friend
188 Reviews  Sort by 
 
Mike, the Pressure Washer Expert
Pressure Washer Expert

Product Expert
Total Reviews
120 Reviews
Total Helpful Votes
4040 Helpful Votes
Pressure Washers Direct Recommended

Given the oversized 212cc Generac brand engine and the durable AR brand axial cam pump, this model is great choice for any homeowner looking to purchase a very good quality pressure washer without putting a large hole in their wallet.

The frame on this unit, like all of the other Generac pressure washers, is a very well thought out design with the consumer in mind. It's balanced and easy to maneuver with 2 easily accessible detergent tanks at the bottom. This model has a vertical frame... more
Mike Recommends This Model
Was this review helpful?
45060
John C.
Morganton, NC
Purchased from Pressure Washers Direct
Purchased 4/4/15
Total Helpful Votes
20 Helpful Votes
Most Helpful Positive Review
REVIEWED
APR.
09
2015
5 out of 55 out of 55 out of 55 out of 55 out of 5
Prior Reviews Predict Your Experience
Very fast shipping. My Generac 6598 came in 4 days. I ordered a Surface Cleaner the same day and I have no idea what the status is, but I am waiting on it. I ordered the ultimate quick connect today. I highly recommend getting these two accessories.

I used my pressure washer for the past two days and I will give you my experience so far.

Set up was easy but my gas cap, like other reviewers, came broken. Luckily, the gas cap has a metal cap that is molded into a plastic outer... more
Pros: Easy To Use, I'd Buy It Again, Price, Easy To Store
Cons: Packaging, Needs Protection On The Top Of The Box
John Recommends This Generac Product
Mike, the Pressure Washer Expert
Product Expert
John,
Thank you so much for sharing such a great review. This kind of feedback is extremely helpful to other shoppers, and we all really appreciate you taking the time to write it.

Best wishes, and have a great spring.
more
Manufacturer Response
Brand Rep
John,
Thank you for providing us with your highly-detailed review. Your input not only helps future shoppers, but also allows us to review our products and make adjustments and/or changes where we can. We appreciated your constructive feedback, and would like to encourage you to contact us directly at 888-GENERAC (436-3722) if there is something that we can help you with in the future.
more
Was this review helpful?
205
Kevin F.
Aiken, SC
Purchased from Pressure Washers Direct
Purchased 3/15/15
Most Helpful Critical Review
REVIEWED
APR.
26
2015
1 out of 51 out of 51 out of 51 out of 51 out of 5
Missing Part
This is good timing. Due to some bad weather and a vacation I had not been able to put my power washer to the test. I recently took it out of the sealed box (no visible holes) and to my dismay it's missing the metal rod that goes into the handle (and you insert the tips).

I would love to be able to write a review but my machine is worthless right now. Do you have the part to send me? I will put off judgement until I can use my power washer but I can't honestly recommend this product without... more
Mike, the Pressure Washer Expert
Product Expert
Kevin,
It sounds like Generac may have missed that during manufacturing. I apologize for Generacs mistake. However, I ordered a new spray wand for you and you should see it in 7-10 business days. Any questions give me a call at 800-710-7499. Thanks
more
Manufacturer Response
Brand Rep
Kevin,
We would like to apologize for this apparent mishap. Please do not hesitate to contact us directly at 888-GENERAC (436-3722) should you require assistance either locating a replacement for your required part, or if you have any other product-related comments, questions, or concerns. We are sorry for any inconvenience that this experience may have caused.
more
Was this review helpful?
41
Robert S.
Sugar Grove, OH
Purchased from Pressure Washers Direct
Purchased 6/23/15
REVIEWED
AUG.
28
2015
5 out of 55 out of 55 out of 55 out of 55 out of 5
A Few Drawbacks
Easy to put together, started on second pull. The only drawbacks are minor. The muffler cover started rusting a lot very quickly. To the point that it looked like it would not last all that long before it would be rusted through. I sanded it and sprayed it with outdoor grille paint. Problem solved. The chrome on the wand is doing the same, not a big deal since the metal is thick enough it shouldn't cause a problem. Works great and has plenty of power to get the job done. I'm pleased... more
Robert Recommends This Generac Product
Manufacturer Response
Brand Rep
Robert,
We are sorry to learn of the rusting that you are currently experiencing on certain parts of your pressure washer. If you would like to acquire applicable replacements, please do not hesitate to contact us directly at 888-GENERAC (436-3722) with the serial number of your personal unit. Doing so will allow us to identify the appropriate part numbers for your personal unit.
more
Was this review helpful?
00
Rajen
Baltimore, MD
Purchased from Pressure Washers Direct
Purchased 5/20/15
REVIEWED
AUG.
26
2015
2 out of 52 out of 52 out of 52 out of 52 out of 5
Don't Buy From Generac
We bought this in May 2015 and used it one time for about 2 hours to clean our patio. We then tried to use it again in July and couldn't pull the start cord. I took it to an authorized service shop and found out the engine is shot and after about 3 weeks, Generac said they will not fix it nor refund the money. So we are out $360.00.
Mike, the Pressure Washer Expert
Product Expert
Rajen,
I apologize for the issues you had. Unfortunately, I reached out to the service center in regards to the issue. The unit was ran with low oil which caused damage to the engine. Unfortunately, this would not be covered under warranty.
more
Was this review helpful?
00
Gregory G.
Albany, NY
Purchased from Pressure Washers Direct
Purchased 7/10/15
REVIEWED
AUG.
21
2015
4 out of 54 out of 54 out of 54 out of 54 out of 5
Generac
It worked good, I am happy with it. Ran it for 5 hours no problem. The hose is junk.
Pros: Easy To Use, Price, Reliable, Quiet
Gregory Recommends This Generac Product
Was this review helpful?
00
Marsha R.
Jaspper, AL
Purchased from Pressure Washers Direct
Purchased 7/6/15
REVIEWED
AUG.
19
2015
5 out of 55 out of 55 out of 55 out of 55 out of 5
It Works For Me
I received the washer in major pieces and had no problems making the final assembly. I didn't realize at first that it had an ignition switch but when I did it started right away.

The washer performed flawlessly at first and has done so every time since (a half a dozen times). No problems with the high pressure hose or any other parts. I am well satisfied. I would recommended this washer to anyone.
Marsha Recommends This Generac Product
Manufacturer Response
Brand Rep
Marsha,
Thank you for providing us with your review of the 3100 PSI residential grade pressure washer! We are pleased to learn of your positive experience with our product. If you have not done so already, be sure to register your unit with Generac Nation; doing so will allow you to initiate your product's warranty and receive future consumer alerts. For your convenience, registration can be completed online via the following link: http://www.generac.com/generac-nation-sign-up?cid=frm-105-aa
more
Was this review helpful?
00
Darrell R.
REVIEWED
AUG.
15
2015
2 out of 52 out of 52 out of 52 out of 52 out of 5
3100 Psi Washer Needs Work
Used it one time and would not start the second time I went to use it. Took it back to store and was told the valves needed adjusted. I was told my washer was not the first one to have the same problem.
Manufacturer Response
Brand Rep
Darrell,
We are sorry to learn of the issues that you are currently experiencing with your residential grade pressure washer. If you are interested in having any maintenance or service-related tasks performed by a trained professional, we would recommend contacting an independent authorized service provider in your local area. These certified service providers are able to not only ascertain the cause of your unit's issues, but they can provide any applicable warranty coverage to your unit as well. To locate an independent authorized service provider closest to you, please use your postal code for searching purposes via the following link: http://www.generac.com/dealer-locator?cid=frm-105-ab . Moreover, if you would like to discuss your personal experience with us in further detail, please do not hesitate to contact us directly at 888-GENERAC (436-3722).
more
Was this review helpful?
00
Bill B.
Beverly Hills, FL
Purchased from Pressure Washers Direct
Purchased 8/9/15
Total Reviews
2 Reviews
REVIEWED
AUG.
14
2015
5 out of 55 out of 55 out of 55 out of 55 out of 5
Nice Homeowner Package
I honestly labored with my decision to purchase this unit, rather than buy another Honda. Wow was I delighted, first, I'm older now, and cant be getting down on the deck to do adjustment, hose connections or etc. This washer is built more vertical, so almost everything can be done while just bending over.

I love the keeper for the tips and the color coding, it's in the right place and provides a handy storage such that this guy wont loose them. I'm amazed at the power, certainly, no... more
Bill Recommends This Generac Product
Manufacturer Response
Brand Rep
Bill,
Thank you for the positive feedback! We truly value your business and candid review. If you haven't done so already, please be sure to register your unit with Generac Nation by providing the information required via the following link: http://www.generac.com/generac-nation-sign-up?cid=frm-100-aa . If you have any questions about the registration process, please do not hesitate to contact us directly at 888-GENERAC (436-3722).
more
Was this review helpful?
00
James W.
Cape Girardeau, MO
Purchased from Pressure Washers Direct
Purchased 7/22/15
REVIEWED
AUG.
12
2015
5 out of 55 out of 55 out of 55 out of 55 out of 5
5 ***** Star Product
1. Received with super fast shipping.

2. Well packaged and intact when received.

3. Assembled with ease. No problems and very simple to do.

4. Instructions listed 20 oz. 10w30 motor oil. Put in 20 oz.(s) oil and it was over full. Had to drain some out. Not a problem but did take some time.

5. Filled with gasoline and read about the switch on/off and choke and throttle.

6. Pulled the start rope. Can't believe it started on the very first pull.

7. Cleaned some concrete... more
James Recommends This Generac Product
Manufacturer Response
Brand Rep
James,
Thank you for providing us with your review of the 3100 PSI residential grade pressure washer! We are pleased to learn of your satisfaction with our product. In regards to your issues with the unit's oil, please know that we test our products out of manufacturing, and as a part of the testing procedures, adding a bit of oil is required. Considering this, a small amount of oil may remain in your unit upon purchase. This is why we recommend slowly filling the unit with oil and periodically checking to ensure that it remains at an optimal level. If you have any other comments, questions or concerns regarding your personal unit, please do not hesitate to contact us directly at 888-GENERAC (436-3722). Moreover, to ensure that your unit is properly registered for warranty coverage, we would recommend submitting the information required via the following link: http://www.generac.com/generac-nation-sign-up?cid=frm-105-aa , if you have not done so already. We hope you find this information to be helpful. Again, we thank you for your candid and positive review.
more
Was this review helpful?
00
Terry D.
Donaldsonville, LA
Purchased from Pressure Washers Direct
Purchased 6/30/15
REVIEWED
AUG.
12
2015
4 out of 54 out of 54 out of 54 out of 54 out of 5
Getting Parts
I needed a high pressure hose connector because mine stripped. Generac wanted $71.00 for a $5.00 dollar part.
Terry Recommends This Generac Product
Manufacturer Response
Brand Rep
Terry,
While we are unsure of the company that you have contacted for replacement parts, please know that we do not sell parts factory direct. It is important to note, however, that replacement parts or accessories can be purchased online via the following link: http://www.ordertree.com/generac/, or through an independent authorized service provider in your local area. To locate an independent authorized service provider closest to you, please use your postal code for searching purposes here: http://www.generac.com/dealer-locator?cid=frm-105-ab . If you have any additional comments, questions or concerns, please do not hesitate to contact us directly at 888-GENERAC (436-3722).
more
Was this review helpful?
00
Dave S.
Pawling, NY
Purchased from Pressure Washers Direct
Purchased 5/1/14
REVIEWED
AUG.
11
2015
5 out of 55 out of 55 out of 55 out of 55 out of 5
Pressure Washer
It has been a great pressure washer, would recommend.
Dave Recommends This Generac Product
Was this review helpful?
00
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